alphabetical listing - Robuta Search

https://www.imf.org/external/pubs/cat/brcat_sp.aspx?brletter=M&brtype=Author

https://www.cdc.gov/niosh/docs/2003-154/method-z.html

NIOSH Publications and Products - NIOSH Manual of Analytical Methods (2003-154) - Alpha List Z

https://ndgenweb.com/

https://www.imf.org/external/pubs/cat/brcat_sp.aspx?brletter=K&brtype=Author